ddd ddn ddo ddp ddr dds ddt dnd dnn dno dnp dnr dns dnt dod don doo dop dor dos dot dpd dpn dpo dpp dpr dps dpt drd drn dro drp drr drs drt dsd dsn dso dsp dsr dss dst dtd dtn dto dtp dtr dts dtt ndd ndn ndo ndp ndr nds ndt nnn nno nnp nns nnt no- nod non noo nop nor nos not npd npn npo npp npr nps npt nrd nrn nro nrp nrr nrs nrt nsd nsn nso nsp nsr nss nst ntd ntn nto ntp ntr nts ntt odd odn odo odp odr ods odt on- ond onn ono onp onr ons ont oo- ood oon ooo oop oor oos oot op- opd opn opo opp opr ops opt or- ord orn oro orp orr ors ort os- osd osn oso osp osr oss ost ot- otd otn oto otp otr ots ott p-p pdd pdn pdo pdp pdr pds pdt pn- pnd pnn pno pnp pnr pns pnt pod pon poo pop por pos pot ppd ppn ppo ppp ppr pps ppt prd prn pro prp prr prs prt ps- psd psn pso psp psr pss pst pt- ptd ptn pto ptp ptr pts ptt rdd rdn rdo rdp rdr rds rdt rnd rnn rno rnp rnr rns rnt rod ron roo rop ror ros rot rpd rpn rpo rpp rpr rps rpt rrd rrn rrp rrr rrs rrt rsd rsn rso rsp rsr rss rst rtd rtn rto rtp rtr rts rtt sdd sdn sdo sdp sdr sds sdt snd snn sno snp snr sns snt sod son soo sop sor sos sot spd spn spo spp spr sps spt sr- srd srn sro srp srr srs srt ss- ssd ssn sso ssp ssr sss sst std stn sto stp str sts stt tdd tdn tdo tdp tdr tds tdt tnd tnn tno tnp tnr tns tnt to- tod ton too top tor tos tot tpd tpn tpo tpp tpr tps tpt trd trn tro trp trr trs trt tsd tsn tso tsp tsr tss tst ttd ttn tto ttp ttr tts ttt